Machine for molding concrete bodies.



PATENTED JULY 21, 1903.

M. A. WIN GET. MACHINE POB. MOLDING CONCRETE BODIES.

APPLICATION FILED APR. 11, 1903.

A A A A A No MODEL.

WITNESSES Edu/m Ward PATBNTED JULY 21, 1903.

No. 734,487. l

- M. A'. WINOET.

MACHINE EOE MOLDING OONOEETE BODIES. APPLICATION FILED APB. 1l, 1903. NOMODEL. 6 3 SHEBS-SHEBT Z.

Fly 8 #ya lNvENOR y Edwin Ward @wm/" ATTORNEY.

".PATENTED JULY 21, 1903..

, M. A. WINGBT. MACHINE FORMOLDING UONGRETE BODIES.

PPLIOATION FILED APB.. 11, 1903.

a SHEETS-SHEET s.

N0 MODEL.

WITNESSES: Elin/172% Ens co, PNUYQLWMQ, WASHINGTON. nv c.

UNITED STATES Patented July 21, 190e.

PATENT OFFICE.

MARION A. VVINGET, OF COLUMBUS, OHIO, ASSIGNOR lO ADDIE E. WINGET,

ELI ROWLES, JOHN A. MCDOWELL, AND '.T. MILAN MODOWELL, OF CO- LUMBUS,OHIO.

MACHINE FOR MOLDING CONCRETE BODIES.

SPECIFICATION forming part of Letters Patent No. 734,487, dated July 21,1903.

\ Application iiled April 11. 1903. l Serial No. 152,169. (No model.)

ro of machines for forming concrete blocks, and

has particular relation to the improvement of that class of machinesshown in my former patent, No. 694,123, issued under date of February25, 1902.

l5 rl-he objects of my invention are to provide a simple, reliable, andeiective machine for the formation of concrete or articial-stone blocksfor building or other purposes; to provide in connection with my machineim- 2o proved. means for regulating the extent of vertical movement ofthe hopper; to provide for an adjustment of the width of the hopper,whereby blocks of different widths may be produced; to provide improvedmeans in con- 25 nection with the frame of my machine whereby themachine may be rocked to a convenient angle for charging the-hopper orramming the material therein, and to produce other improvements, thedetails of which will 3o be more fullypointed'out hereinafter. Theseobjectsl accomplish in the manner illustrated in the accompanyingdrawings, in which* Figure 1 is a side elevation of my machine with thehopper in a lowered position. Fig. 3 5 V2 is a plan view. Fig. 3 is acentral vertical section on lineooxof Fig. 10. Fig. llis an enlargedsectional View through one of the yoke projections on the side of thehopper bottom plate, said view being taken on line y y of 4o Fig. 5.Fig. 5 is afront elevation of the same.

Fig. 6 is a virwv in elevation of one of the hopper-supportingyoke-frames. Fig. 7 is aview in elevation at right angles with thatsho-wn in Fig. 6. Fig. Sis an enlarged transverse 45 section on line z,e of Fig. 6 with the yoke removed. Fig. 9 is a similar view showingthe` yoke-frame in connection with the bar shown in Fig. 8. Fig. 10 isan end View of my machine, showing the hopper in its elevated p0- sitionand with its ends and sides thrown out- 5o ward. Fig. 1l is a sectionalView on line tt of Fig. 12. Fig. 12 is an enlarged view in elevation,illustrating the hinge connection of one of the end plates of the hopperwith the body thereof; and Fig. 13 is an enlarged sec- 55 tional View online s s of Fig. 3.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention I employ a suitable framework comprisingvertical end 6o standards or uprights 1, which are connected atdesirable heights by a horizontal frameplate 2. Each of theframestandards 1 is formed with acentral vertical slot 3, and to theupper sideot' the frame-plate 2 are detach- 65 ably secured the lowerends of upwardly-projectingl cores 4. Above the frame-plate 2 I ysupportin the manner hereinafter described a horizontally-disposed hopperbottom plate 5, said hopper further consisting of side and 7o' endplates 6 and 7, which are hinged in the manner hereinafter described.With the under side of the hopper bottom plate 5 and near each endthereof is connected the upper end of a vertical supporting-standard 8,each `75 of these standards extending through a slotted opening 2a inthe plate 2 and having its lower end connected With a transverse rod orshaft 9, the end portions of which extend through the slotted openings 3of the frame- 8o standards 1.

10 represents yoke or U-shaped frames,

with the centers of the lower or cross bars of which are connectedrigidly the lower ends of the standards 8, the rod V9 thus piercing 85both said standards and yokes. The upwardly-extending arm 10a of each ofthe yokes 10 is formed with a flaring head 10", on one face ofwhich isprovided a series of notches 11. At the junction of each of the arms l09o and the cross-arm of the yoke 10 is pivoted an upwardly-extending bar12of greater height than'the arms 10, said bars having their upper endportions bifurcated, as indicated at 12a, and having said bifurcatedpor- 95 tions pivotally connected with downwardlyprojecting lugs 13 ofthe side plates 6 of the hopper. (See Fig. 1.) Each of the bars 12 hasformed therein a transverse slot 12, through which projects a bolt 14,which eX- tends from the head of the adjoining yokearm 10, this boltbeing adapted to receive a nut on its outer end. Each of the bars 12has, as indicated more clearly in Fig. S of the drawings, formed on thatside which is adjacent to the adjoining yoke-arm 10 a projecting toothor lug 10C, which, as indicated in Fig. 9, is adapted to engage thedesired one of the notches 1l of said adjacent yokearm.

In the manner above described a hinge connection of the hopper sideplates with the bars 12 of the supporting-yoke 10 is effected. The endplates 7 of the hopper are hinged in connection with the ends of thebottom plate 5, each of said end plates being provided in its lowerportion with projecting hinge-lugs 15, which are mounted on shorthinge-pins 16, which are journaled between the sides of yoke-likeprojections 17 of the ends of the bottom plate 5. (See Figs. 11 and 12.)Through a threaded opening in the outer bar 17 of each of said yoke-likeprojections eX- tends a set-screw 18, the inner end of which is adaptedto bear against the outer side of a downward extension 15 of thehinge-lug 15, said set-screw or bolt thus serving to limit the inwardmovement of the hopper end plate. The hopper end plates, which are thushinged in their lower portions to the plate 5, are formed with anoutwardly projecting central lib 7, the lower portion of which isreduced in thickness, as indicated in the drawings. This rib is adaptedto bear vertically against a roller 19, journaled in a bracket 20, thesebrackets being adjustably mounted upon the upper sides of the endportions of an oblong frame 21, mounted upon the upper ends of thestandards 1 and adapt ed to loosely embrace the hopper-body. In asimilar manner outwardly-projecting ribs 6 of the hopper side plates areadapted to contact with friction-rollers 22, mounted in bracket-plates23, adjustably connected with the frame 21. I also provide the bottomplate 5 on its longer sides with yoke-like projections 24, into whichproject downwardly-ex tending fingers 25 ofthe side plates 6. Ru nningthrough a threaded opening in the outer bar 24 of each of the yokeprojections 24 is a set-screw 27, the inner end of this set-screwadapted to contact with one of the downwardly-projecting lingers 25 ofone of said side plates.

Journaled in the frame-standards 1 beneath the frame-plate 2 and at oneside of the center of the width of the machine is a shaft 2S, this shaftcarrying on each of its ends a gear-wheel 29 and on the inner side ofsaid gear-wheel a pinion 30. These gear-wheels 29 have their upper sidesin mesh with pinions 3l, carried on the outer end portions of an upperhorizontal shaft 32, which is also journaled in the frame-standards 1and which shaft is provided with crank-handle terminations 33. Ontheinner side ofone of the pinions 3l may be carried, as indicated inFig. 1 of the drawings, a ratchet-wheel 34, with which is adapted toengage the toothed end of a suitable pivoted pawl 35, this pawl servingwhen not thrown upward and out of engagement with the ratchet to preventa reversed rotation of the shaft 32. The teeth of each of the pinions 30engage the teeth of a rack-bar 36. One of these rack-bars is arranged toslide vertically on the outer side of each of the end frames 1 over theslotted opening 3, said rack-bar being connected through the medium ofbolts. 37, extending through said slotted opening,'with a vertical plateor bar 33 on the inner side of the frame-standard and also beingconnected with the shaft or rod 9. As indicated more clearly in Fig. 13of the drawings, each of the frame-standards 1 has formed on oppositesides of its slotted opening 3 inwardly-projecting vertically-arrangedflanges or wings 39, the latter being formed, as shown more clearly inFig. 3, with pin-holes 40, arranged one above the other therein. Inorder to facilitate the movement of the inner bars 38 through theframeplate 2, I recess the ends of said plate, as indicated at 41.

Within the hopper-body and upon the bottom plate 5 I support amold-board 42, the latter being removable and formed with openings toreceive the cores 4.

In constructing each of the standards 1 I form the under side thereof ona rocker-like curve, as indicated at 1 in Fig. 10, the rear portion ofthis curve terminating in a downwardly-extending leg portion 1b, whichis adapted to bear upon the ground or floor. At the forward sides of theframe I provide in place of the legs 1b legs 43, which are pivoted intheir upper portions at 44 to the` framestandard, said pivoted legsbeing connected in their lower portions by a transverse connecting ortrip rod 45. As indicated in Fig. 10 of the drawings, these pivoted legs43 extend when in their normal positions below the frame-standards t'o acorresponding level with the legs 1b; but when said legs 43 are turnedoutward on their pivots to the position indicated in dotted lines inFig. 10 it will be ob served that the sidevor edge of each of said legs,which becomes the under side, forms a continuation of the curvature ofthe portion 1a of the standard, thereby permitting the machine to berocked forward and supported at such angle as to greatly facilitate theiilling of the hopper and ramming of the material therein.

It will be understood that when the pin- IOO IIO

ions 30 are in engagement with the upper portions of the racks 36 thehopper will be in its lowered position, the end plates 7 being heldupright through the medium of the rollers 19, and the side plates beinglikewise held upright through engagement of their end portions with lugs7J of said end plates.

Assuming that said hopper is thus supported in its lowered position, thematerial from which the building or other block is to be produced isintroduced into the hopper through the open upper side thereof, saidhopper being thus filled to the desired depth about the cores. By thenrotating the shaft 32 and through the gear connections describedimparting a rotary motion to the shaft 28 and pinions 30 the engagementof said pinions with the rack-bars 36 will result in the lifting of therack-bars and through the consequent lifting ofthe rod 9 and thesupports 8 in an upward movement of the hopper body.

` to vertical positions.

It is obvious that when the friction-rollers 19 are in contact with thelower portions of the end-plate ribs 7a said end plates may drop outwardand downward and that the same is true of the side plates 6, theseplates being shown in their outer positions in Fig. 10 of the drawings.The sidesy and ends of the hopper being thus dropped outward, it will beobvious that the block previously formed within the hopper will thus beexposed and that said block will have been formed with openingstherethrough conforming to the shapes of the cores 4. It will-also beunderstood that the mold-board may be removed, together with the block,the hopper turned to its lowered position, and again filled withmaterial. In this operation of lowering the hopper it will be understoodthat the side and end plates thereof will be again raised v Owing to thecontact of the extensions 15 of the hinge-lugs 15 with the screws 18 thedegree of inward movement or inclination of said hopper end plates maybe regulated, this being also true with reference to the side plates 6in view of the contact of the extensions 25 thereof with the adjustablescrews 27. lt being desired to increase or decrease the width of theblock'to be produced, the nuts of the bolts 14 may be v loosened and theteeth or projections 10C of the bars 12 caused to engage new teeth ornotches of the series 11 on the heads of the yoke-arms'lOa. It will beunderstood, however, that the change in the Width of the block to beproduced necessitates the employment of a mold board or plate 42 ofproper width.

In order to regulate the extent of the upward and downward movement ofthe hopper, I provide the frame flanges or wings 39, having the openings40 therein,thron gh which may be inserted stop-pins, one ofwhich isindicated at 48 in Fig. 13. These stop-pins are adapted by contact withthe rod 9 to stop the movement of the rack-bars, and consequently stopthe movement of the hopper.I The bearing of the set-screws 27 againstthe extensions 25 of the side plates also serves to strengthen said sideplates against outward movement which may be caused by pressure on thematerial containedin the hopper.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

I. In a machine for molding concrete bodies, the combination with aframework, and4 a hopper comprising a bottom plate` and side and hingedend plates, of a vertically-movable support for said hopper comprising ayoke-frame and bars pivotally and Vadjustably connected with saidyoke-frame, said bars having hinge connections with said hop-v y perside plates, for the purpose specified.

2. In a machine for molding concrete bodies, the combination with aframework comprising end standards having projecting flanges providedwith a plurality of pin-holes, a hopper comprising a bottom plate andside and end hinged plates, of a vertically-movable support for saidhopper, rack-bars movably mounted on said end standards, a shaftconnecting said rack-bars and carrying said hopper-support, said shaftadapted to contact with pins connecting opposite openings in saidframe-anges, for the purpose specified.

3. In a machine for molding concrete bodies, the combination with aframework, a hopper vertically movable therein, hinged hopper side andend `plates and a bottom plate for said hopper, said bottom plate havingyokelike projections as 24 and said hinged side plates having extensions25 extending Within said bottom-plate projections, and set-screwsadjustably supported in said bottom-plate projections, substantially asspecified.

4. In a machine for molding concrete bodies,

roo

the combination with a hopper-supporting framework comprising connectedend standards, the lower ends of said standards being curved to .form avforward-rocking motion of the frame and means connected with theforward portions of said standard-bases for preventing a forward-rockingmovement of the frame when not desired,substantially as specied.

5. In a machine for molding concrete bodies, the combination with aframework compris-V ing connected standards 1 having curved under sidesand having fixed-leg projections on their rear portions, of legs 43pivotally connected with the forward sides of said standards, saidpivoted legs adapted to be projected downward to form forward supportsfor- IIO theA frame, or to beswung outward and uplward to formrocker-like continuations of the bases of said standards, substantiallyas specified. j

MARION A.. wiNeET. Y,

In presence 0f- S. A. WEBB,

C. C.' SHEPHERD.

